Finding the Third Proportional to 139,162 and 298,000

Step by Step Solution

1. Step 1: Write the proportion equation
   139,162 : 298,000 = 298,000 : x
2. Step 2: Convert to fraction form
   139,162/298,000 = 298,000/x
3. Step 3: Cross multiply
   139,162x = 298,000 × 298,000
4. Step 4: Simplify right side
   139,162x = 88,804,000,000
5. Step 5: Solve for x
   x = 88,804,000,000/139,162
6. Step 6: Final answer
   x = 638,133.97